Comment by tptacek

That is a reasonable argument about Chrome! That's not hokum; even some people who have worked on and are invested in the Firefox security and isolation model will concede that Chrome has historically had a material edge there, and it has been reflected in browser vulnerability prices (I don't want to cite the obvious chart here because I think the audience for that thing is message boards and not people working in the field, but it's directionally correct).

There's also the benefit of having one set of controls with respect to profiles and extensions.